A paingasm is an orgasm that is achieved exclusively through pain stimuli. This phenomenon is closely associated with masochism. It is common to BDSM practices.
More About Paingasm
A paingasm can be achieved through a varitey of painful activities. This can include spanking, flogging, whipping, painful bondage, pain massage, biting, slapping, punching, or any other action that causes physical pain. Accessories like nipple clamps can be used to achieve paingasms or serve as added pain stimuli.